# FireSync Shift Calendar vs CalcuDose

The clearest difference is in-app purchases: FireSync Shift Calendar at none against CalcuDose's 1. CalcuDose's advantage is update cadence (every 6 days vs every 2 months) and review sentiment (86% vs 69%). On price, ads and device support there is nothing between them.

Both are free to download. CalcuDose sells 1 one-off in-app purchase. FireSync Shift Calendar asks for nothing beyond the download.

FireSync Shift Calendar ships an update every 2 months, CalcuDose every 6 days. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | FireSync Shift Calendar | CalcuDose |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (9.1K ratings)](https://appshunter.io/ios/app/firesync-shift-calendar/id811674374/reviews)** | — |
| Number of ratings | **9.1K** | — |
| Positive reviews | 69.2% of reviews | **85.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 176 MB | 28 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ForceReadiness.com](https://appshunter.io/developer/412513833) | [QRTouch Development](https://appshunter.io/developer/1543008653) |

## What reviewers say

### FireSync Shift Calendar

[App page](https://appshunter.io/ios/app/firesync-shift-calendar/id811674374)

This app is a comprehensive calendar designed for firefighters, offering robust shift tracking, event management, and cloud integration. It allows users to manage trades, overtime, and personal events, with features like CertTracker and Expenditure tracking. It also syncs with other calendars and devices for seamless organization.

**Highlights:** Firefighter shift schedule tracking, Event management (trades, overtime, personal), Cloud integration with FireSync Enterprise™, CertTracker and Expenditure tracking, Customizable shift editor, Year and month calendar views, Report generation and emailing

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Share capable
- 👍 Perfect setup
- 👍 User friendly and simple
- 👍 Easy to use
- 👍 Convenient

**What reviewers complain about**

- 🐛 Randomly deletes events
- 🔒 Trouble with calendar access
- 🐛 Holiday icon disappeared
- 🐛 Erased all info
- 🐛 Verification not working

**Reported bugs**

- Randomly deletes events
- Trouble with calendar access
- Holiday icon disappeared
- Erased all info
- Verification not working

**Requested features**

- Color customization for days
- Shift designation by number
- Custom FLSA start/end dates
- Customizable pay days
- Shift trade feature


### CalcuDose

[App page](https://appshunter.io/ios/app/calcudose/id1609062237)

Easily calculate liquid dosages and flow rates for medical applications. Input concentration, desired quantity, or volume and duration to get precise results in ml/h and drops/min. Access your last 15 calculations through the history feature.

**Highlights:** Dose calculation, Flow rate calculation, Unit and volume input, Time unit selection, Drops per ml selection, Calculation history

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalcuDose unlimited for life | $1.99 | one-time |


## Frequently asked questions

### Is FireSync Shift Calendar free?

FireSync Shift Calendar is free to download, with no in-app purchases.

### Is CalcuDose free?

CalcuDose is free to download, with in-app purchases available.

### Do FireSync Shift Calendar or CalcuDose have ads?

Neither FireSync Shift Calendar nor CalcuDose shows ads.

### Which is updated more often, FireSync Shift Calendar or CalcuDose?

FireSync Shift Calendar ships an update every 2 months, and CalcuDose every 6 days. Most recently, FireSync Shift Calendar was updated on October 13, 2026 and CalcuDose on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*